<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Security Verification | Goldfish System</title>
    <style>
        body {
            margin: 0;
            padding: 20px 0;
            background: #f5f6fa;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        .email-container {
            max-width: 600px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .logo {
            text-align: center;
            margin-bottom: 25px;
        }
        .logo span {
            color: #2c3e50;
            font-size: 24px;
            font-weight: bold;
            vertical-align: middle;
        }
        .content {
            color: #4a4a4a;
            line-height: 1.6;
        }
        .sms-code {
            background: #f8f9fa;
            border: 2px dashed #18bc9c;
            border-radius: 8px;
            padding: 15px;
            margin: 25px 0;
            text-align: center;
            font-size: 28px;
            color: #2c3e50;
            font-weight: bold;
            font-family: monospace;
        }
        .button {
            display: block;
            width: 80%;
            margin: 25px auto;
            padding: 12px;
            background: #18bc9c;
            color: white !important;
            text-align: center;
            text-decoration: none;
            border-radius: 25px;
            font-weight: bold;
            transition: background 0.3s ease;
        }
        .button:hover {
            background: #149a7e;
        }
        .footer {
            margin-top: 30px;
            color: #9a9a9a;
            font-size: 12px;
            text-align: center;
            line-height: 1.4;
        }
    </style>
</head>
<body>
<div class="email-container">
    <div class="logo">
        <span>🐠 Goldfish System</span>
    </div>

    <div class="content">
        <p>You are attempting to log in securely. Your verification code will expire in <strong>15 minutes</strong>:</p>

        <div class="sms-code" th:text="${serial_value}">000000</div>

        <p>Do not share this code with anyone. Our staff will never ask for this code.</p>

        <a th:href="${quick_link}" class="button">Verify Now →</a>
    </div>

    <div class="footer">
        <p>This is an automated message - please do not reply directly<br>
            Contact support if you have questions | © 2024 Goldfish System</p>
    </div>
</div>
</body>
</html>